[1] The castle was a main bastion of the Murakami clan.

[2] In, 1553, the castle was attacked by Takeda Shingen, Murakami Yoshikiyo abandoned the castle and fled to Echigo, seeking Nagao Kagetora's help.

[4] Its ruins have been protected as a Prefectural Historic Sites.

[2] The site is now only ruins, with some stone walls, moats, and earthworks.

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